Hot-water bag



M. L. REID.

HOT WATER BAG.

APPLICATION man MAY 1. ma.

1 ,3 1 7, 1 O2 Patented Sept. 23, 1919.

a L Arme/m,

Maumee L am, or SAN EnANcIsco, CALIFORNIA.

HOT-WATER BAG.

Specification of Letters Patent.

Patented Sept.v 23, 1919.

Application Bled Hay 7, 1918. i Serial No. 233,023.

To all whom z't may concern:

Be it' known that I, `MAURICE L. REID, a citizen of the United States,residing at gan Francisco, in the county of San Franclsco and State ofCalifornia, have invented certain new and useful Improvements in IIot-Water Bags, of which the following 1s a specification.

The present invention relates broadly to improvements in receptacles andto that specifietype known to the-trade as hot water bags, bottles,syringes or the like. Receptacles ofthis character are generally made ofrubber and are very prone to spring leaks sooner or later so that theirutility is quite limited. This is mainly due to the manner in which theyare made, that is, their` inherent structural defects', in that they arenot properly reinforced .to withstand the rou h usage to which the areput, or to wea messes produced by t e effect of the heat from thecontents, or to the disintegrating effect of the chemicals that maybeQembodied in the liquid .introduced therelnto, causing the receptacleto develop thin spots that give way in due course.

It is to overcome these disadvantages that my invention has as itsobjective and to this end I resort tothe expedient of reinforcin thereceptacle as a whole both in regar to its seams and other points wherethe strains are greatest, resulting in considerable prolongation of thelife of the article under the most trying requirements, for exam le, ofhospital use.

hese and such other objects as may hereinafter appear are attained bythe novel construction, combination and arrangement of parts to behereinafter specifically described and claimed. Reference will now behad to the accompanying drawings forming a part of this specification,wherein: i

Figure 1 is a fragmentary view of the upper portion of a bag constructedin accordance with this invention, parts being broken away and shown insectionto clearly disclose the details of construction;

Figs. 2 and 3 are sectional views somewhat enlarged and taken about onthe lines 2 2 and 3-3 of Fig. 1, respectively;

Fig. 4 is a fragmentary view of the lower end of the bag showing thereinforced supporting tab more clearly; and

Fig. 5 is an enlarged sectional view through the neck portion of thebag.

Throughout the following detail description and on the several figuresof the drawings, similar parts are referred to by like referencecharacters.

The material of the body portion of the bag which forms the subjectmatter ot' this invention is preferably of pure rubber interlaid withspecial strong cotton cloth or the like so that the article as a wholeis built somewhat on the same principle as an automobile tire. In otherwords, it will be observed in Figs. 2 and 3 that the walls of the bagconsist of an outer layer of rubber 1, an inner layer 2, and aninterposed layer of fabric 3. The edges of the respective walls arevulcanized together in the customary manner but these seams in miconstruction are doubly reinforced. In ot er Words, interiorly of thebody I provide a rubber reinforcin` strip 4 extending entirel, about thevulcanlzed scam from one side o the neck to the other side. Exteriorly Iemploy a further reinforcement for lthis seam construction in the formof a rubcially formed to reinforce this part of the bag which is mostoften subjected to considerable strain. At the neck the mouth of the bagis provided with the usual metallic thimble 7 corrugated to constitutethreads to receive the stopper 8. This thimble is set and vulcanized inpure rubber and extending about the outer layer of rubber is a wire band9 which presses the rubber into the grooves of the thimble and preventsany ikelihood of displacement of the latter. Finali', about this neckportion I apply a renilorcing strip of combined rubber and fabric, asindicated at 10, similar in fact to the reinforcing strip comprising theelements 5 and 6 above described.

The bag is providedwith the usual funnel like entrance 11, and thefingerloop 12 to which the loss preventing connection 13 is attached atone end and to the stopper 8 at the other end.

In addition to the foregoing, the upper portion is provided with afurther .reinforcing layer of rubber as indicated at 14 adhered to thewalls of the bag and passing beneath the outer reinforcing strip 5-6 forthe ed es of the bag.

At t e bottom the bag is provided withI the usual hanging` orsupporting` tab 15.wit'h the eyelet 16, this tab being formed of fabricreinforced rubber as clearly indicated in Fig. 4. It will fbe apparentfrom the foregoing that the bag made in accordance with this descriptiony and arrangement is as strong as it is possible to construct it to bestmeet the requirements of usage in hospitals and other places.

Having thus described my invention, what I claim as new is:

Lemma tentsof the bag and the fabric'and an outer 30 and similarlyformed reinforcing strip.

In testimony whereof I aiix my signature.

MAURICE L. REID.

